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kant
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Homework Statement
A cannonball is droped off a tower at a distence, but simultaneously a second cannonball is fired upward on the ground directly below it. What is the behavior ( movement ) of the center of mass acceration in such two body system.
Homework Equations
Newton s laws for systems
The Attempt at a Solution
A mass of distence d above the ground when droped, will have acceration g down ward. a second mass of the same multitude is fired from below to above, will have an acceration unknown to me. My attempt is that if i only known the acceration that initally impel the mass from the groud to above, i will be able to find the acceration of the center of mass.
Ma(cm) = m( 1)a( 1) + m(2)a( 2)
Where a( am) is a sub cm to donate the acceration of the center of mass.
a( 1) means a sub 1
I know that a(cm) is not downward
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